Ventilating-faim



No. 750,450. PATENTED JAN. 26, 1904.

0. GILTNER.

VBNTILATING FAN.

APPLICATION FILED MAR. 10. 1903.

2 sums-sum 1.

1V0 MODEL.

W I OZa'aer l W PATENTED JAN 26, 1904.

'0. GILTNER. VBNTILATING FAN. APPLIUATION FILED MAR. 10, 1903; N0 MODEL.2 SHEETS-SHEET 2.

\\ IIIIIIIIIIIIII Z Patented January 26, 1904.

ATENT Orricn.

OLIVER GILTNER, OF PORTLAND, OREGON.

VENTILATING-FAN.

SPECIFICATION forming part of Letters Patent No. 750,450, dated January26, 1904. Application filed March 10, 1903. Serial No. 147,135. (Nomodel.)

To ail whom it may concern.-

Be it known that I, OLIVER GILTNER, a citizen of the United States,residing at Portland, in the county of Multnomah and State of Oregon,have invented new and useful Improvements in Ventilating-Fans, of whichthe following is a specification.

This invention relates to ventilating-fans, the objects in View being toproduce a cheap, simple, and portable fan containing within itself thenecessary operating mechanism and which is capable of being used todeliver air either from the top, as in the case of an ordinary verticalrotary fan, or at the side, as in the case of an ordinary blower, and,furthermore, which is capable of being regulated in speed, so as todeliver the desired blast.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof willbe particularly pointed out in theclaims.

Referring to the drawings, Figure 1 is a side elevation of a fanembodying my improvements. Fig. 2 is a similar view, the fan beingdesigned to deliver a side blast. Fig. 3 is a skeleton view of themechanism with the casing removed. Fig. 4 is adetail, enlarged, showingthe socket for connecting the ordinary fan-shaft to the train ofgearing. Fig. 5 is a vertical section through the casing-wall andfan-driving shaft, illustrating the speedgoverning mechanism. Fig. 6 isa transverse section on the line 6 6 of Fig. 3, and Fig. 7 is a sideelevation of the blower-casing.

Similar numerals of reference indicate similar parts in all the figuresof the drawings.

In practicing my invention I employ a suitable casing 1, that isarranged upon a base 2, saidcasing containing the entire mechanism fordriving the fan and capable of being moved from place to place, so as tobe conveniently located.

Within the casing and connecting the base 2 with a superimposed head 3is a pair of vertical guide-rods 4, the same being preferablycylindrical in cross-section and combining to serve as guides for anoperating weight 5. (See Fig. 6.) At each side of the aforesaidguide-rods 4 pulleys 6 and 7 are suspended in. suitable brackets fromthe head 3.

Between the guide-rods 4 and the adjacent wall of the casing is locatedin suitable plates 8 and 9 a train of driving gearing 10, the same beingof the usual construction, and therefore requiring no additionaldescription. Comprised within the train of gearing 10 is a drum-shaft11, around and attached to which is a cable 12, the same passingupwardly over the pulleys 6 and 7 and from the latter downwardly at theopposite sides of the guide-rods 4 around a pulley 13 on the upper endof the weight 5 and backward to a fixed point within the casing. Belowthe drum -shaft 11 and geared to drive the same is a winding-shaft 14,that projects through an opening 15 in the casing and is adapted toreceive in a removable manner a winding hand-crank 16. The uppermostshaft 17 of the train of gearing 10 may also project through an opening18 in the casing and removably receive a rotary fan or blower 19,located within a casing 20, removably secured by screws or otherattaching means (not shown) to the wall of the casing 1, whereby a sidedelivery-blast is obtained. In suitable bearings 21 (see Fig. 4) isjournaled a short shaft 22, said bearings being seated in transversebraces 23, interposed between the plates 8 and 9. The shaft 22 isprovided with a socket 24 at its upper end and at its lower end with abeveled gear 25, which meshes with and is driven by a gear 26, locatedon the shaft 17.

27 indicates the vertical fan-shaft, the same having a reduced lower end28, which fits within the socket 24 of the shaft 22, and at its upperend, which is located above the casing 1, is provided with a cross-arm29, upon which is supported at opposite sides of the shaft 27 blades 30.These blades may be readily adjustable upon the cross-arm 29 by means ofa collar 31, located at the reverse side of each blade and which isbored to receive the crossarm, and a thumb-screw 32,that passes throughthe said collar and impinges on the said crossarm. At right angles tothe shaft 17 and supported for longitudinal movement in the brace 38 isa regulating-shaft 34, the same having its inner end Y-shaped orbifurcated, as at 35, so as to straddle the shaft 17, and at theextremity of each of its bifurcations a loosely-journaled roller 36, theperipheries of which rollers bear upon a collar 37, located on the shaft17. The outer end of the regulating-shaft 34L projects through theopening 38 and is threaded in a fixed nut 39, registering with saidopening in the casing 1. Be yond the casing l a dial-plate 40 (see Figs.1, 2, and 5) is arranged on the casing 1, and movable over thedial-plate and upon the shaft 34 is a dial-hand 41, that moves with saidshaft. This dial is divided into degrees, and it will be obvious thatby' moving the hand the shaft will be fed inwardly or outwardly and itsroller 36 caused to impinge more or less against a rotating collar 37 ofthe shaft 17, whereby through frictional contact the said shaft 17 willbe permitted to rotate at an increased or decreased speed in accordancewith the force of said impingement.

It will of course be understood that the speed-gearing referred to isprovided with the usual pawl-and-ratchet mechanism (not necessary toshow) for holding the gear from reverse movement and also that in orderto decrease or reduce the friction the bearings of the various shaftsmay be provided with any of the usual antifriction devices.

When it is desired to employ the fan to deliver a side blast, thevertical shaft 27 and its fan may be removed, and vice versa, or bothfans may be employed, if preferred.

The operation of the apparatus will be readily understood from theforegoing description and may be briefly stated as follows:

Through the medium of the crank 16 the winding drum-shaft is rotated, soas to take up the cable 12, and thus elevate the weight. The fan orfans, as the case may be, will thus be rotated by the motion of thegearing as caused by the descending Weight, the speed being increased ordecreased by a proper setting of the hand 41 on the dial 40.

Having thusdescribed my invention, what I claim is 1. A device of thecharacter described comprising a train of gearing, means for operatingthe same, a horizontal fan-shaft operated by said gearing, a verticalfan-shaft operated by said horizontal shaft, a shaft having a bifurcatedend bearing against said horizontal shaft and means for regulating thepressure of said bifurcated shaft against said horizontal shaft.

2. A device of the character described comprising a train of gearing,means for operating the same, a horizontal fan-shaft operated by saidgearing, a vertical fan-shaft operated by said horizontal shaft, a shafthaving a bifurcated end, rollers mounted in said bifurcated end andbearing against said horizontal shaft, and a tension device working onthe opposite end of said bifurcated shaft.

In testimony whereof I afiiX my signature in presence of two witnesses.

OLIVER GILTNER. Witnesses:

H. G. GREENE, R. D. DEPUE.

